Question

0.12(2x-5)+3x=81 solve and check by substitution if your answer is correct.

Answer 1

0.12(2×-5)+3×=81

0.24× - 0.6+3×=81

0.24× ‐3.6×=81

‐3.36×=81

×=81/‐3.36

×=‐81/3.36

× = ‐81 ×100 /336

× =‐8100 /336

24.1071428571 =×